Portable interface unit for a head-up display system



FIG. 1 is a reduced top perspective view of the portable interface unitfor a head-up display system in an open position showing our new design;

FIG. 2 is a first end view of the portable interface unit of FIG. 1;

FIG. 3 is a top view of the portable interface unit of FIG. 1;

FIG. 4 is a first side view of the portable interface unit of FIG. 1;

FIG. 5 is a second side view of the portable interface unit of FIG. 1;

FIG. 6 is a second end view of the portable interface unit of FIG. 1;

FIG. 7 is a bottom view of the portable interface unit of FIG. 1;

FIG. 8 is a perspective view of the portable interface unit shown in aclosed position; and,

FIG. 9 is a perspective view of the portable interface unit of FIG. 1shown with an extended antenna.

The ornamental design for the portable interface unit for a head-updisplay system, as shown and described.